Bobbin holder



July 20, 1-948.

A. J. STROZINSKI 301mm HOLDER Filed larch 4, 1946 ATTURNE Y 1 Patented July 20, 1948 BOBBIN HOLDER Anthony J. Strozinski, Elmira Heights, N. Y., assignor to Bendix Aviation Corporation, a corporation of Delaware Application March 4, 1946, Serial No. 651,822

3 Claims.

The present invention relates to pendulous bobbin holders and more particularly to antifriction supports for bobbins and the like of the general type illustrated in the patent to Mann, 1,821,656.

It is an object of the present invention to provide a novel bobbin holder which is shorter than types previously developed so as to reduce the space necessary between the upper and lower is preferably located next to the creelboard to prevent loosening of the bolt by vibration. A brake member i4 is clamped between the dust cover and the elastic washer in position to bear on and control the rotation of a yarn package carried by the holder.

The body member I is arranged to fit loosely within the bore I! of a bobbin l8, and is provided with diametrically arranged slots I], ll

creelboards, and facilitate the mounting of the which extend axially of the body. A disc or ring bobbin on the holder. I! of elastically deformable material such as It is another object t provide. Such a device rubber is located axially within the body 8, with incorporating a yielding attaching means which its outer edge pr din thr h the 81 1 1. bears frictionally in the bore of the bobbin with- I!- The diameter and thi kn ss f th disc. and out necessitating the formation of an inner t dimensions of the 013 are p b y 50 shoulder in said bore. related that when the holder is not in use the It is another object to provide such a device in disc substantially fills the slots and protrudes which the attaching means is arranged to resist from the ody a distan app ately equa removal of the bobbin with a force substantially to th thi n ss of the disc as shown in Fi 4. larger than that necessary to place the bobbin 20 Thi arr n m nt in ure t the pr tr din on the holder. portions of the disc will not bend sidewise but Further objects and advantages will be apwill merely be compressed radially when the bobparent from the following description taken in bin is placed on the holder. Itwill be underconnection with the accompanying drawing, in stood that, as stated above, member It may be which: either a disc or a ring, and if in the form of a Fig. 1 is a side elevation, partly broken away rin t t al p n ay b 01 any suita and in vertical section, of a bobbin holder consize in relation to the outside diameter and the stituting a preferred embodiment of the invenstiffness of the material to secure the desired tion; deformation under the prevalent working pres- Fig. 2 is a sectional detail of a second 'emsures and weight to be supported. The term bodiment of the invention showing the parts in disc as used in the specification and claims is, the positions assumed during the attachment of therefore, intended to include both solid discs at bobbin to the holder; and perforated discs or rings.

Fig. 3 is a view similar to Fig. 2, the parts In the operation of this embodiment of the inbeing shown in the positions assumed while the vention, when a bobbin is pressed upward onto bobbin is suspended from the holder; and the holder, the projecting portions of the disc I! Fig. 4 is a detail in perspective of the'body are compressed, forcing the disc into a somewhat portion and attaching means of a holder conoval shape as illustrated in Fig. 1, whereby the structed as shown in Figs. 2 and 3. disc provides a firm frictional grip within the In Fig. 1 of the drawing, there is illustrated a 40 bore ii of the bobbin. This compression of the portion of a creelboard i of a spinning frame or disc may befacilitated by suitably bevelling the the like having an opening 2 in which is inserted upper ends of the slots i1, i8 as illustrated. a supporting bolt 3 which is clamped to the Thereafter the weight of the bobbin is transcreelboard by a nut 4. The lower end of the bolt mitted through the rubber ring it to the abut- 3 is provided with a spherical head 5 forming an ments in the body 8 formed by the bottoms of inner race for a set of ball bearings 8, the outer the slots i1, i8, whereby the bobbin is securely race 1 of which is mounted in the upper end of supported.

a tubular body member 8. A thrust diaphragm In the embodiment of the invention illustrated member 9 is preferably mounted in the body in Figs. 2, 3 and 4, means are provided for causmember 8 in position to abut the bearing race 1, ing the attaching ring to expand and grip the the assembly being preferably unified by spinbore of the bobbin with increasing pressure when ning over the end of the body member as shown tractive force is applied to the bobbin to draw .at l0. itofi the holder. This arrangement renders it A dust cover ii is mounted on the bolt I possible for an operator to apply the bobbin to against a shoulder i2 and an elastic washer i3 the holder with a minimum amount of effort p the form of a pin 2| is suitably fixed in any. suitable manner as by riveting in the bottom of said body in position to form a support for the rubber ring or disc I9. The slots l1, l8 in the body I are preferably extended slightly, and inclined tongues 22, 28 are formed at the upper ends thereof in order to facilitate compression of the upper part of the rubber ring when upward pressure is applied thereto. The pin 2! is so positioned that it prevents the ring l9 from engaging the bottoms of the extended slots in the body 2 so that the weight of the bobbin and the yarn package thereon is supported wholly by the Pin 2|.

In the operation of this embodiment of the invention, when the bobbin is applied to the holder as illustrated in Fig. 2, the engagement of the upper end of the bobbin with the ring i9 causes the latter to be pressed upwardly between the tongues 22, 23 of the holder thereby compressing the ring into a somewhat oval shape until its horizontal diameter is reduced to the diameter of the bore of the bobbin, whereupon the bobbin slips over the rubber ring into attached position. The pressure necessary to effact this adjustment is somewhat reduced by the assistance of the inclined tongues 22, 23 in compressing the ring.

When the bobbin is being supported by the holder as shown in Fig. 3, the weight of the bobbin is transmitted through the ring iii to the pin 2| whereby a mechanical leverage is established in the nature of a toggle as indicated by the dotted lines ab, be, which toggle effect causes the lower half of the ring to attempt to expand and thus press against the interior of the bobbin. This arrangement permits the attainment of a secure attachment of the bobbin to the holder while permitting the ring iii to be designed to present very little resistance to the application of the bobbin to the holder.

Although but two embodiments of the invention have been shown and described in detail, it will be understood that other forms of the invention are possible and changes may be made in the proportions and arrangement of the parts without departing from the spirit of the invention as defined in the appended claims.

What is claimed is:

1. In a pendulous bobbin holder for spinning frames and the like, a cylindrical body adapted to loosely fit in the axial bore of a bobbin and having diametrically arranged longitudinal slots intermediate its length, means for pendulously supportin-gthe body from a creelboard with freedeal for rotation and universal movement, and

, a disc of elastically deformable material mounted lengthwise in the body and projecting through said slots to fricticnally engage the bore of the bobbin, the thickness of the disc being approximately as great as the maximum distance the disc protrudes from said slots. 7

2. In a pendulous bobbin holder for spinning frames and the like, a cylindrical body adapted to loosely fit in the axial bore of a bobbin and having diametrically arranged longitudinal slots intermediate its length, means for pendulously supporting the body from a creelboard with freedom for rotation and universal movement, and a disc of elastically deformable material mounted lengthwise in the body and projecting through said slots to frictionally engage the bore of the bobbin, said body being provided with means for engaging and supporting the disc at its bottom so that downward force applied to the projecting portions of the disc cause it to expand and grip more tightly the interior of the bobbin.

3. In a pendulous bobbin holder for spinning frames and the like, a cylindrical body adapted to loosely fit in the axial bore of a bobbin and having diametrically arranged longitudinal slots intermediate its length, means for pendulously supporting the body from a creelboard with fredom for rotation and universal movement, and a disc of elastically deformable material mounted lengthwise in the body and projecting through said slots to frictionaliy engage the bore of the bobbin, said body being formed with a bottom support for the disc, and said slots extending downwardly suiiiciently to provide clearance for the disc so that the weight of the bobbin is taken by said support. the upper ends of the slots being beveled to facilitate compression of the disc as the bobbin is applied to the holder.

ANTHONY J. STROZINSKI.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,692,441 Hasbrouck Nov. 20, 1928 2,145,362 Mann Jan. 31, 1939 

